Source Mozilla.

IP address validation

Can be used to validate on URL's.

This is an Email validation using RegExp.

Regex from the Mail::RFC822::Address: regexp-based address validation Access here

This RegEx validates whether a number is in the standard valid Nigerian mobile number format or not.

Validate a modified Version of https://udacity.github.io/git-styleguide/

tas-branch-validation

Extract this regex from EmailValidation.php

Validates email

Use to validate basic website URLs with or without http://. I took bits and pieces of other regexes I found and compiled into one that worked well for my purposes.

https://regex101.com/ https://www.cloudways.com/blog/prevent-laravel-xss-exploits/ https://cloudways.com

validation of IPv4 addresses

address validation from the first two segments of an IPv6 address

(?!..]{2})((https?|http)\:\/\/)?([a-z0-9+!(),;?&=\$.-]+(\:[a-z0-9+!(),;?&=\$.-]+)?@)?([a-z0-9-.-.]?(?!.\/).)\.([a-z]{2,1000})(\:[0-9]{2,5})?(\/([a-z0-9+\$-]\.?)+)\/?(\?[a-z+&\$.-)?(#a-z_.-)?

This is used for simple email validation

links validation

It validates the RGB expression doesn't break the CSS parser.

Only meant as an initial client-side filter to override the default input[type=email] validation done according to spec, which is much too simple. Inputs passing this regex MUST get validated in a more fine-grained manner again when received on the server-side

This one makes sure to not match 31 in months where it does not exist and cuts off february at 28. Might need to do special check for 29th of february ..?

Checks in input for matching social security numbers in Denmark

Validates mail addresses

Regex used for password validation. A password match the following: At least 8 characters in length Minimum of 1 lower-case character Minimum of 1 upper-case character Minimum of 1 digit Minimum of 1 special character (non-whitespace)

Find validation name and name inside parentheses

email validation

VLAN ID Validation Regex Please use first segment or second depending on the Extended VLAN usage such as "1-256" or "1-4096" : Non-extended VLAN IDs (1-256), check v2 of the regex entry ^(25[0-6]|(2[0-4]|1\d|[1-9])\d|[1-9])$ Extended VLAN IDs (1-4096), check v3 of the regex entry ^(409[0-6]|(40[0-8]|[1-3]\d\d|[1-9]\d|[1-9])\d|[1-9])$

IPv4 Address Validation Regex

Very simple validation expression that will validate a date in the range of 19000101 through 20991231. These formats are very popular for partitioning and representing dates as Long values or Integers. This does not check for Leap year values, or the months with varying number of days. Please Note: this will return a match on 20220231 even though this is not a valid date. Additional validations should be used if Leap years and Days of the Month should be verified as well.

Comes with choice of four separators

Validação de código de barras boleto padrão "FEBRABAN - Federação Brasileira de Bancos".

Safe EMail validation protected against ReDos attack. Exclude all non conventionnal special char like #{%... only accept . - and _. . EMail can't start with number or specials chars. Domain accept only one subdomain and ip are available 63 Maximum characters accepted Check for valid IP

Safe EMail validation protected against ReDos attack. It exclude all non conventionnal special char like #{%... only accept . - and _. . EMail can't start with number or specials chars. Domain accept only one subdomain and ip are available 63 Maximum characters accepted

This expression validates russian phones in different formats

Basic email regex for quick validation

IPv4 w/ w/o port validation and localhost string supported

^a-zA-Z+@[a-zA-Z]{3,20}\.[a-z]{3}$

Regex to validate an email input with the following rules... Whole address: Up to 254 characters. Case insensitive. Username and domain separated by @ symbol. Only one @ symbol allowed. No spaces allowed. Username: 1 to 64 characters. Any letter, digit and symbol from these #!%$'&+*-/=?^_.{|}~ are allowed. It cannot start or end with a dot. It cannot have two (or more) consecutive dots. Domain: Only letters, digits and hyphens (and dots of course) allowed. It cannot start or end with a dot. Unlimited number of labels separated by one dot allowed. No label can start nor end with hyphens. It cannot have two (or more) consecutive dots. 2 to 63 characters per label. It cannot have an all-numerical TLD.

Regex for datestring validation

Flexible postcode validation with or without space as outlined here, but added optional space for flexibility https://assets.publishing.service.gov.uk/government/uploads/system/uploads/attachment_data/file/488478/Bulk_Data_Transfer_-_additional_validation_valid_from_12_November_2015.pdf

Used to validate the list of MAC addresses is formatted correctly. The list of MACs can use ":", "-", or "." as a separator: Example with a "-" separator: 00-11-22-33-44-55 Example with a ":" separator: 00:11:22:33:44:55 Example with a "." separator: 0011.2233.4455

This email validation regex works perfectly (99.99%) for validating email address entries. The regex does not match email addresses with with the following characteristics: Addresses that begin/end with a special character Addresses with consecutive repeated special characters Special characters matched are: Period (".") Hyphen ("-") Underscore ("_") https://regex101.com/r/0NVXwu/1

Bandwidth value validation: 1-1023K 1-1023M 1-40G

regex for ip validation

This recognizes phone numbers, including country codes if they're present.

Domain can be an IP address, except 0.0.0.0 Domain with length of 1 accepted Only acceptable symbol in Domain is "-" (hyphen) Not allowed in start, end or twice in a row (same for "." (dot))

mac address validation in hex or decimal form

This Test will check is the given string is Exactly of 6 digits & all chars are Numbers. use case OTP Validations.

Custom name validation

Simple email validator (x@x.x) Note: Use /g to test all example emails.

web validation